Arbor Tree

Arbor Tree grows branches that can be harvested for Lumber. It is found naturally in Forest Biome.

Usage

 * Pips consume the growing Arbor Tree branches and excrete Dirt.

Growth
Arbor Tree requires a temperature range of 15 °C to 40 °C, and an air pressure of 150 g - 10 kg.

Arbor Trees grow in two stages: In the first stage, taking a complete growth cycle (18 or 4.5 Cycles), it grows the main trunk and produces no lumber. The second stage takes another growth cycle and produces branches. Arbor Trees can have up to 5 branches in 7 possible locations (the center-center and center-bottom are occupied by the trunk). Once a branch has matured, it can be harvested. Each branch produces 300 kg Lumber.

An Arbor Tree requires 3x3 space for all 5 branches to grow, but it can be stifled by nearby walls and buildings.

Arbor Trees consume 70 kg of Polluted Water and 10 kg of Dirt regardless of the number of branches growing; therefore, it is best to grow Arbor Trees with 5 branches (in a 3x3 space) to reduce the amount of resources spent.

The 5 branches can grow from any of 7 different locations (3 on each side, 1 on top). You can select individual branches to see their growth progress. Individual branches may also be "uprooted" individually and separately from the main trunk, forcing the branch to regrow in another of the 7 spawn locations (if any are available). If a branch is blocked from growing by an obstacle, removing that obstacle (including a branch from an adjacent tree that is occupying that spot) will immediately permit a branch to spawn in that location (if the tree is not already at 5). Once a branch has spawned in a location, it will continue to regrow in that same location unless and until forced to move by a manual uproot command.

Using manual uprooting (a one-time process when they first start to grow their branches), it is possible to grow up to 3 Arbor Trees with only a single empty tile between them (rather than the normal 2). The two outer trees use the top slot all 3 outside slots, plus 1 of the slots in the shared tile with the inner tree, while the inner tree uses its own top slot and 2 of the 3 slots in each of the shared tiles. Planting 4 or more with this spacing does not permit all branches to spawn. One can plant 3 trees with a single tile spacing, then have a 2-tile gap, then another 3 trees. Using this pattern, one can fit a total of 13 trees, with 1 tiles of width to spare, in a 3x32 Greenhouse, compared to only 10 trees (and 2 spare tiles of width) if they are planted all at a 2-block spacing. Note that all 3 Arbor Trees must be planted at the same time, as the game will not permit an Arbor Tree seed to be selected for planting unless the entire 3x3 branch area is clear (once planting is queued, obstacles can be placed in the area without issue, as long as they don't block the trunk).

While the main trunk of the Arbor Tree can be boosted by Farmer's Touch, the branches do not benefit from it and still take the full 4.5 cycles domestically or 18 cycles in the wild to mature.

Pips can extract bonus acorns from grown trees.

Wild
A wild Arbor Tree takes 18 cycles to grow, and another 18 cycles to grow a set of branches.

A wild Arbor Tree can produce a maximum of 83.(3) kg of lumber per cycle or 138.(8) g/s (harvested by a duplicant).

A wild Arbor Tree drops a maximum of 39.47 kg of lumber per cycle or 65.79 g/s (unharvested).

Each wild Arbor Tree can feed 3 adult Pips (if tame and happy).

Domestic
Arbor Tree can be planted in a Planter Box, a Farm Tile or a Hydroponic Farm. It needs to be fertilized with 10 kg/cycle of Dirt, and 70 kg/cycle Polluted Water irrigation.

A domestic Arbor Tree takes 4.5 cycles to grow to maturity, and another 4.5 cycles to grow a set of branches.

A domestic Arbor Tree can produce a maximum 333.(3) kg of lumber per cycle or 555.(5) g/s. This means each Arbor Tree can run 0.56 Ethanol Distillers (ie. 1.8 trees per distillery)

Each domestic Arbor Tree can feed 12.3 adult Pips (if tame and happy).

Decor
An Arbor Tree has a decor value of 15 with 2 tiles radius. It applies to the main trunk and each existing branch, which might add up to the value of 90. Which might be convenient for park and nature reserve rooms. However, rooms do not count each branch as an individual plant for the purposes of determining park and nature reserve rooms.

Heat Economy
The branches are spawned at fixed temperature of 20°C, due to being made out of Genetic Ooze. Harvested Lumber spawns at the current temperature of the branch. Branches retain their temperatures between harvests.

Arbor trees produce enough mass to make them heat multiplying if fertilizers are not fed at certain temperatures. It is also beneficial to keep the plant's branches as cold as possible.

The HTC output/input ratio is an enormous ~3.8.

Assuming the branches are kept at 16 °C:


 * If both fertilizers are at 20 °C Arbor trees will produce 20.6 kDTU/s of energy.
 * Arbor trees become net heat negative if fed water above 62 °C and 30 °C dirt.
 * With 110 °C water and 30 °C dirt one Arbor Tree destroys 23.5 kDTU/s.

Tips

 * Branches can be auto-harvested with Watefalls.
 * Arbor Acorn can be produced at a much faster rate by submerging branches in liquids.

Bugs

 * As of LU-361684, using fertilizer boosts only the initial growth to maturity of the primary branch and has no effect after that.

History
Ветвистое дерево